Spray-json deserializing nested object

Question

How to deserialize nested objects correctly in spray-json?

    import spray.json._

    case class Person(name: String)

    case class Color(n: String, r: I         


        

Answer 1

To your remaining question - how to reuse JSON conversions within a wrapping type:

"person-field" -> JsObject("p-name" -> JsString(c.p.name))

I would change this to:

"person-field" -> p.toJson

This way, you are letting the Person case class JSONify itself, instead of introducing another way in the wrapping object. DRY and simpler.

And:

case Seq(JsString(name), JsNumber(red), JsNumber(green), JsNumber(blue), JsObject(person)) => 
  Color(name, red.toInt, green.toInt, blue.toInt, null)

Use the .convertTo[Person] here:

case Seq(JsString(name), JsNumber(red), JsNumber(green), JsNumber(blue), jsv) => 
  Color(name, red.toInt, green.toInt, blue.toInt, jsv.convertTo[Person])

If there are problems, please ask for more help. I have similar structure in my own project but didn't try to run them in this context.